listen to the pronunciation of sidetrack
English - English
To divert or distract (someone) from a main issue or course of action with an alternate or less relevant topic or activity; or, to use deliberate trickery or sly wordplay when talking to (a person) in order to avoid discussion of a subject

I hope you can sidetrack the teacher with questions so we don't have to take the exam.

An alternate train of thought, issue, topic, or activity, that is a deviation or distraction from the topic at hand or central activity, and secondary or subordinate in importance or effectiveness

Stay focused on the story; you keep getting lost in all of these little sidetracks.

To divert (a locomotive) on to a lesser used track in order to allow other trains to pass
To deviate briefly from the topic at hand

To sidetrack for a moment, let me commend this team for their outstanding efforts.

A second, relatively short length of track just to the side of a railroad track, joined to the main track by switches at one or both ends, used either for unloading freight, or to allow two trains on a same track to meet (opposite directions) or pass (same direction); a railroad siding
Any auxiliary railroad track, as differentiated from a siding, that runs adjacent to the main track
To sideline; to push aside; to divert or distract from, reducing (something) to a secondary or subordinate position

He has sidetracked this debate for far too long.

A smaller tunnel or well drilled as an auxiliary off a main tunnel or well
a short stretch of railroad track used to store rolling stock or enable trains on the same line to pass
wander from a direct or straight course
to divert or reduce to a position or condition that is relatively secondary or subordinate in activity, importance, effectiveness, or the like; to switch off; to turn aside, as from a purpose
To transfer to a siding from a main line of track
Hence, fig
If you are sidetracked by something, it makes you forget what you intended to do or say, and start instead doing or talking about a different thing. He'd managed to avoid being sidetracked by Schneider's problems The leadership moved to sidetrack the proposal They have a tendency to try to sidetrack you from your task
{i} siding, section of railroad track that is connected to the main track
{f} move a train from the main track onto a parallel section of railroad track; divert, distract, move away from the main issue
past of sidetrack
present participle of sidetrack
third-person singular of sidetrack